* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, sans-serif; line-height: 1.6; color: #333; background: #f5f5f5; }
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
.site-header { background: #fff; box-shadow: 0 2px 4px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 100; }
.header-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; justify-content: space-between; align-items: center; height: 60px; }
.logo { font-size: 24px; font-weight: bold; color: #e50914; }
.main-nav { display: flex; gap: 10px; white-space: nowrap; }
.nav-link { padding: 8px 16px; text-decoration: none; color: #333; border-radius: 4px; transition: all 0.3s; font-size: 14px; }
.nav-link:hover, .nav-link.active { background: #e50914; color: #fff; }
.main-content { min-height: calc(100vh - 140px); padding: 20px 0; }
.hero-section { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: #fff; padding: 60px 20px; text-align: center; border-radius: 8px; margin: 0 20px 40px; }
.hero-section h1 { font-size: 32px; margin-bottom: 20px; line-height: 1.4; }
.hero-section p { font-size: 18px; max-width: 800px; margin: 0 auto; line-height: 1.8; }
.intro-section { background: #fff; padding: 40px 20px; margin: 0 20px 40px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.intro-section p { font-size: 16px; line-height: 1.8; color: #666; }
.video-section { margin-bottom: 40px; }
.section-title { font-size: 24px; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid #e50914; }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; margin-bottom: 20px; }
.video-card { background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.1); transition: transform 0.3s, box-shadow 0.3s; }
.video-card:hover { transform: translateY(-4px); box-shadow: 0 4px 16px rgba(0,0,0,0.2); }
.video-card a { text-decoration: none; color: inherit; display: block; }
.video-cover { position: relative; width: 100%; padding-top: 56.25%; background: #ddd; overflow: hidden; }
.video-cover img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; }
.video-info { padding: 15px; }
.video-title { font-size: 16px; margin-bottom: 8px; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.video-one-line { font-size: 14px; color: #666; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.video-player-section { background: #000; margin-bottom: 30px; }
.video-player { max-width: 1200px; margin: 0 auto; }
.video-player-inner { position: relative; width: 100%; padding-top: 56.25%; background: #000; overflow: hidden; }
.player-play-btn { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 80px; height: 80px; border: none; border-radius: 50%; background: rgba(229, 9, 20, 0.9); color: #fff; font-size: 32px; cursor: pointer; transition: all 0.3s; display: flex; align-items: center; justify-content: center; }
.player-play-btn:hover { background: #e50914; transform: translate(-50%, -50%) scale(1.1); }
.player-play-icon { margin-left: 4px; }
.detail-info, .detail-module, .related-section { background: #fff; padding: 30px 20px; margin: 0 20px 20px; border-radius: 8px; }
.detail-info h2, .detail-module h2, .related-section h2 { font-size: 20px; margin-bottom: 15px; color: #e50914; }
.detail-info dl { display: grid; grid-template-columns: 100px 1fr; gap: 10px; }
.detail-info dt { font-weight: bold; color: #666; }
.detail-module p { font-size: 15px; line-height: 1.8; color: #666; }
.top-list { list-style: none; }
.top-item { background: #fff; padding: 20px; margin-bottom: 20px; border-radius: 8px; display: flex; gap: 20px; align-items: center; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.top-item .rank { font-size: 32px; font-weight: bold; color: #e50914; min-width: 50px; text-align: center; }
.top-item img { width: 120px; height: 160px; object-fit: cover; border-radius: 4px; }
.top-item a { display: inline-block; padding: 8px 16px; background: #e50914; color: #fff; text-decoration: none; border-radius: 4px; font-size: 14px; transition: background 0.3s; }
.top-item a:hover { background: #c40812; }
.site-footer { background: #333; color: #fff; text-align: center; padding: 20px; margin-top: 40px; }
@media (max-width: 768px) {
  .main-nav { gap: 5px; }
  .nav-link { padding: 6px 10px; font-size: 12px; }
  .hero-section h1 { font-size: 24px; }
  .hero-section p { font-size: 16px; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 15px; }
  .video-cover { padding-top: 45%; }
  .top-item { flex-direction: column; text-align: center; }
  .top-item .rank { font-size: 24px; }
  .detail-info dl { grid-template-columns: 80px 1fr; }
}